Color image display system

Details Color image display system Color image display system

G - Physics

09

G

375/4

G09G 1/28 (2006.01) G09G 5/06 (2006.01)

Patent

CA 1262784

ABSTRACT A color lookup table used in this invention is divided into a shared area and dedicated areas. The shared area stores colors shared by a plurality of images to be simultaneously displayed. A dedicated area is provided for each image and stores colors proper to a corresponding image. The colors stored in the shared area are selected by the uniform sampling of the RGB space, and the colors stored in the dedicated areas are selected by the adaptive sampling of each image. In the adaptive sampling, a chromaticity histogram is created, from which chromaticities frequently used are selected, and several representative colors are assigned for each chromaticity. Thus, the sampling is done primarily for colors with the same chromaticity but different brightnesses.

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